Answer : The mass of oxygen gas produced will be 4.45 grams
Explanation : Given,
Mass of water = 5.2 g
Molar mass of water = 18 g/mole
Molar mass of = 32 g/mole
The balanced chemical reaction will be,
First we have to calculate the moles of water.
Now we have to calculate the moles of oxygen.
From the balanced chemical reaction, we conclude that
As, 6 moles of water react to give 6 moles of oxygen gas
So, 0.139 moles of water react to give 0.139 moles of oxygen gas
Now we have to calculate the mass of oxygen gas.
Therefore, the mass of oxygen gas produced will be 4.45 grams